Seamless.AI vs Zeliq: Data Enrichment Tool vs Sales Engagement Platform Comparison
Compare Seamless.AI (data enrichment tool) and Zeliq (sales engagement platform) side by side. See pricing, features, and integrations to decide which one, or both, your stack needs.
Seamless.AI is a data enrichment tool built for B2B contact search and lookups; Zeliq is a sales engagement platform built for multichannel outreach sequences and engagement tracking. Both offer free plans starting at $0 per month. Seamless.AI fits teams needing accurate contact data, while Zeliq fits teams coordinating outreach across email, calls, and social.
Key takeaways
- Seamless.AI's free plan includes 50 credits, while Zeliq's free Basic plan allows importing up to 100 leads per month with 2 active email-only sequences.
- Zeliq's Starter plan costs $59 per month and includes 750 credits per month plus either 75 phone numbers or 750 emails.
- Both Seamless.AI and Zeliq integrate with Salesforce, HubSpot, and Pipedrive.
- Seamless.AI lists add-on features such as buyer intent data, job changes tracking, and autopilot list building that Zeliq does not list.
- Zeliq's Custom plan starts at 24,000 credits per user per year, while Seamless.AI's Pro and Enterprise plans require contacting sales for custom pricing.
Reviewed and updated September 2, 2026
Seamless.AI vs Zeliq: Data Enrichment Tool vs Sales Engagement Platform Comparison
Seamless.AI is a data enrichment tool; Zeliq is a sales engagement platform. Whether you need one, the other, or both depends on which part of the workflow you are buying for: B2B lead data and contact enrichment on one side, multi-channel sales outreach and engagement tracking on the other. This guide lays out what each vendor publishes.
The Quick Answer
Seamless.AI is a data enrichment tool for B2B lead data and contact enrichment; Zeliq is a sales engagement platform for multi-channel sales outreach and engagement tracking. By each vendor's own wording, Seamless.AI lists real-time b2b contact search engine and email and cell phone lookups, and Zeliq lists multichannel sequences across email, call and social and lead search with basic and advanced filters.
Both start at the same price point ($0/mo), so the decision comes down to features and workflow fit.
If your priority is finding accurate contact data for target accounts, Seamless.AI is the one built for it; for coordinating outreach across email, phone, and social channels, that is Zeliq. Many teams run one of each.
Understanding the Core Difference
Seamless.AI is AI-powered sales lead platform with real-time contact search engine, pitch intelligence, and data enrichment for B2B prospecting.
Zeliq is Sales prospecting and engagement platform that combines a lead search and waterfall enrichment hub with multichannel sequences across email, calls and social, plus a connected dialer and CRM sync.
The two platforms take different approaches to solving the same core challenge.
Pricing Comparison
Seamless.AI Pricing (as of September 2026)
| Plan | Price | Contacts |
|---|---|---|
| Free | Free | 50 Credits |
| Pro | Contact Sales | Annual Credit Packages |
| Enterprise | Contact Sales | Custom Packages |
Source: Seamless.AI Pricing
Zeliq Pricing (as of September 2026)
| Plan | Price | Contacts | Emails |
|---|---|---|---|
| Basic | Free | Import up to 100 leads per month | Run 2 active sequences (emails only) |
| Starter | $59/mo | 750 credits / month | 75 phone numbers or 750 emails |
| Custom | Contact Sales | Starts as from 24k credits/user/year | - |
Source: Zeliq Pricing
Pricing Analysis
Both platforms start at the same $0/mo price point. The decision comes down to which feature set and tier structure works better for your expected usage.
Both platforms offer free tiers, so you can test each one before spending anything.
Features Breakdown
- Real-time B2B contact search engine
- Email and cell phone lookups
- Pitch intelligence
- Data enrichment
- Buyer intent data (add-on)
- Job changes tracking (add-on)
- and 4 more listed below
- Multichannel sequences across email, call and social
- Lead search with basic and advanced filters
- Enrichment Hub with waterfall enrichment
- Chrome extension for enrichment
- Lead engagement scoring
- Dialer connection for calling from the platform
- and 4 more listed below
Seamless.AI Key Features
- Real-time B2B contact search engine
- Email and cell phone lookups
- Pitch intelligence
- Data enrichment
- Buyer intent data (add-on)
- Job changes tracking (add-on)
- Autopilot list building (add-on)
- AI writing assistant
- Chrome extension
- Enterprise security and compliance
Zeliq Key Features
- Multichannel sequences across email, call and social
- Lead search with basic and advanced filters
- Enrichment Hub with waterfall enrichment
- Chrome extension for enrichment
- Lead engagement scoring
- Dialer connection for calling from the platform
- Social automation
- SDR and manager cockpits for reporting
- Two-way CRM integration to pull and push records
- Enrichment API
The two lists below are a diff of each vendor's own feature list by exact wording, so a capability both tools offer can appear on either side under a different name.
Listed only by Seamless.AI
- Real-time B2B contact search engine
- Email and cell phone lookups
- Pitch intelligence
- Data enrichment
- Buyer intent data (add-on)
- Job changes tracking (add-on)
- Autopilot list building (add-on)
- AI writing assistant
- Chrome extension
- Enterprise security and compliance
Listed only by Zeliq
- Multichannel sequences across email, call and social
- Lead search with basic and advanced filters
- Enrichment Hub with waterfall enrichment
- Chrome extension for enrichment
- Lead engagement scoring
- Dialer connection for calling from the platform
- Social automation
- SDR and manager cockpits for reporting
- Two-way CRM integration to pull and push records
- Enrichment API
Integration Ecosystem
Seamless.AI Integrations
Seamless.AI connects with: Salesforce, HubSpot, Outreach, SalesLoft, Pipedrive, Microsoft Dynamics 365, Zapier.
Zeliq Integrations
Zeliq connects with: HubSpot, Salesforce, Pipedrive, Aircall, Ringover, Gmail, Microsoft, API.
Shared Integrations
Both tools integrate with: Salesforce, HubSpot, Pipedrive.
Integrations listed only by Seamless.AI: Outreach, SalesLoft, Microsoft Dynamics 365, Zapier.
Integrations listed only by Zeliq: Aircall, Ringover, Gmail, Microsoft, API.
Use Case Recommendations
Best Fit for Seamless.AI
- Budget-conscious teams looking for an affordable data enrichment tool
- Teams that want to start free and scale up as needs grow
- Enterprise buyers who prefer custom pricing and dedicated support
Best Fit for Zeliq
- Budget-conscious teams looking for an affordable sales engagement platform
- Organizations with complex tech stacks needing broad integration support (8 integrations)
- Teams that want to start free and scale up as needs grow
- Enterprise buyers who prefer custom pricing and dedicated support
Feature Comparison Summary
| Feature | Seamless.AI | Zeliq |
|---|---|---|
| Starting Price | Free | Free |
| Top Tier Price | Contact Sales | Contact Sales |
| Total Features Listed | 10 | 10 |
| Integrations | 7 | 8 |
| Founded | 2015 | N/A |
Getting Started Checklist
- Define your B2B lead data and contact enrichment and multi-channel sales outreach and engagement tracking requirements and monthly budget
- Estimate your expected data credits or contact lookups and sequences and engagement actions to find the right tier
- List the integrations your team currently relies on
- Sign up for free trials or demos of both platforms
- Run a small test with each tool before making a commitment
- Evaluate the onboarding experience and support quality
Final Thoughts
Seamless.AI serves the B2B lead data and contact enrichment side of an outbound stack and Zeliq the multi-channel sales outreach and engagement tracking side. Seamless.AI offers a more accessible entry point, while Zeliq starts at $0/mo. Your decision should weigh pricing against the specific features that matter most for your workflow.
Start with a trial of each to see which platform fits your team's daily process. The best tool is the one your team actually uses consistently.
Pricing and features verified as of September 2026. Visit Seamless.AI and Zeliq for current information.
Frequently asked questions.
Frequently asked questions- What is the main difference between Seamless.AI and Zeliq?
- Seamless.AI is a data enrichment tool built for B2B contact search and lookups, while Zeliq is a sales engagement platform for multichannel outreach and engagement tracking. Seamless.AI focuses on finding accurate contact data, whereas Zeliq focuses on coordinating outreach across email, phone, and social channels.
- How much does Zeliq cost?
- Zeliq's Basic plan is free and allows importing up to 100 leads per month with 2 active email-only sequences. The Starter plan costs $59 per month for 750 credits per month plus either 75 phone numbers or 750 emails, and the Custom plan starts at 24,000 credits per user per year and requires contacting sales.
- How much does Seamless.AI cost?
- Seamless.AI's Free plan includes 50 credits at no cost. Its Pro and Enterprise plans both require contacting sales, with Pro offering annual credit packages and Enterprise offering custom packages.
- Do Seamless.AI and Zeliq integrate with the same tools?
- Yes, both integrate with Salesforce, HubSpot, and Pipedrive. Seamless.AI additionally connects with Outreach, SalesLoft, Microsoft Dynamics 365, and Zapier, while Zeliq additionally connects with Aircall, Ringover, Gmail, Microsoft, and an API.
- Can you use both Seamless.AI and Zeliq together?
- Yes, many teams run one of each since the two tools serve different parts of the sales workflow. Seamless.AI handles B2B lead data and contact enrichment, while Zeliq handles multichannel sales outreach and engagement tracking.
About the author.
Tim Carden is CMO / CTO at RevenueFlow, which builds and operates outbound revenue engines for B2B companies. Studied at McGill University.
Tim Carden · CMO / CTO
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